What is the Greatest Common Factor of 91440 and 91445?

Greatest common factor (GCF) of 91440 and 91445 is 5.

GCF(91440,91445) = 5

We will now calculate the prime factors of 91440 and 91445, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 91440 and 91445.

How to find the GCF of 91440 and 91445?

We will first find the prime factorization of 91440 and 91445. After we will calculate the factors of 91440 and 91445 and find the biggest common factor number .

Step-1: Prime Factorization of 91440

Prime factors of 91440 are 2, 3, 5, 127. Prime factorization of 91440 in exponential form is:

91440 = 2⁴ × 3² × 5¹ × 127¹

Step-2: Prime Factorization of 91445

Prime factors of 91445 are 5, 18289. Prime factorization of 91445 in exponential form is:

91445 = 5¹ × 18289¹

Step-3: Factors of 91440

List of positive integer factors of 91440 that divides 91440 without a remainder.

1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 127, 144, 180, 240, 254, 360, 381, 508, 635, 720, 762, 1016, 1143, 1270, 1524, 1905, 2032, 2286, 2540, 3048, 3810, 4572, 5080, 5715, 6096, 7620, 9144, 10160, 11430, 15240, 18288, 22860, 30480, 45720

Step-4: Factors of 91445

List of positive integer factors of 91445 that divides 91440 without a remainder.

1, 5, 18289

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 91440 and 91445. The biggest common factor number is the GCF number.
So the greatest common factor 91440 and 91445 is 5.

Also check out the Least Common Multiple of 91440 and 91445